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Merck

A92902

Sigma-Aldrich

Ácido L-ascórbico

99%

Sinónimos:

Ácido L-treoascórbico, Factor antiescorbútico, Vitamina C

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25 G
US$ 76,30
100 G
US$ 109,00
500 G
US$ 283,00
2 KG
US$ 868,00

US$ 76,30


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25 G
US$ 76,30
100 G
US$ 109,00
500 G
US$ 283,00
2 KG
US$ 868,00

About This Item

Fórmula empírica (notación de Hill):
C6H8O6
Número de CAS:
Peso molecular:
176.12
Beilstein/REAXYS Number:
84272
EC Number:
MDL number:
UNSPSC Code:
12352205
PubChem Substance ID:
NACRES:
NA.21

US$ 76,30


En stockDetalles


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biological source

synthetic

Quality Level

assay

99%

form

powder

optical activity

[α]25/D 19.0 to 23.0°, c = 10% in H2O

color

white to off-white

pH

1.0-2.5 (25 °C, 176 g/L in water)

mp

190-194 °C (dec.)

solubility

water: soluble 176 g/L at 20 °C

SMILES string

OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O

InChI

1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1

InChI key

CIWBSHSKHKDKBQ-JLAZNSOCSA-N

Gene Information

human ... SLC23A2(9962)

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General description

L-ascorbic acid is used as a food additive, browning inhibitor, flavor stabilizer, dough modifier and color stabilizer. Deficiency of ascorbic acid is associated with scurvy. L-ascorbic acid stimulates immune response and is implicated in the synthesis of collagen, carnitine and neurotransmitters.[1]

Application

L-Ascorbic acid has been used:
  • as a component in osteogenic differentiation medium[2]
  • in MesenCult medium for the differentiation of bone marrow stromal cells[3]
  • as a standard for vitamin C assay[4]
  • to prevent trihalomethanes formation potential (THMFP)[5]

Biochem/physiol Actions

L-Ascorbic acid (L-AA) is a widely available and water-soluble compound. L-AA has an ability to inhibit the corrosion of mild steel.[6]
Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Ascorbic acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases. Ascorbic acid also functions as a powerful antioxidant, particularly in regards to reactive oxygen species.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Certificados de análisis (COA)

Lot/Batch Number

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Visite la Librería de documentos

Nutrient oxidation in pork loin is influenced by feed supplementation and packing methods
Godziszewska J, et al.
J. Food Compos. Anal., 56, 18-24 (2017)
THMs Precursor Removal Efficiency from Different Wastewater Treatment Technologies Effluents
Qurie M, et al.
Journal of Water Resource and Protection, 10(07), 637-637 (2018)
Mouse polycomb group gene Cbx2 promotes osteoblastic but suppresses adipogenic differentiation in postnatal long bones
Katoh-Fukui Y, et al
Bone, 120(, 219-231 (2019)
Vitamin C in human health and disease is still a mystery? An overview
Naidu KA
Nutrition Journal, 2(1), 7-7 (2003)
The Role of Melatonin Preconditioning on Survival of Bone Marrow-Derived Mesenchymal Stem Cells in Differentiation to Osteoblasts
Rafat A, et al.
Iranian Red Crescent Medical Journal (2018)

Protocolos

Step-by-step culture protocols for neural stem cell culture including NSC isolation, expansion, differentiation and characterization.

Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. What is the validity period of this reagent?

    1 answer
    1. This product is not assigned an expiration date or recommended retest date. Customers should routinely inspect products with no expiration date or recommended retest date to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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